Submission #912408

#	Time	Username	Problem	Language	Result	Execution time	Memory
912408		Trisanu_Das	Election (BOI18_election)	C++17	28 / 100	3050 ms	1280 KiB

election

#include <bits/stdc++.h>
using namespace std;
 
signed main() {
	int n,q; cin>>n;
	string s; cin>>s;
 
	cin>>q;
	while(q--) {
		int l,r; cin>>l>>r;
		l--,r--;
		vector<bool>v(n, 0);
		int cnt = 0;
		int ans = 0;
		for(int i = l ; i <= r ; i++) {
			if(s[i] == 'T') cnt--;
			else cnt++;
			if(cnt < 0) v[i] = 1, ans++, cnt++;
		}
		cnt = 0;
		for(int i = r ; i >= l ; i--) {
			if(s[i] == 'C') cnt++;
			else if(!v[i]) cnt--;
			if(cnt < 0) ans++, cnt++;
		}
		cout << ans << '\n';
 
	}	
}

• Subtask 1: 28 / 28
• Subtask 2: 0 / 54
• Subtask 3: 0 / 18